一个可以用代码设置selector背景（按下去背景颜色更改，样式变化等等）的button, 再也不用写selector了

A simple Floating Action Button that shows an anchored Navigation View

Shape 支持在布局中直接定义啦，支持设置阴影，文字渐变色，状态选择器

Button which is visible while user holds it. Main use case is controlling audio recording state (like in Telegram, Viber, VK).

Animated favorite/star/like button

带有徽标(数字，小红点)的按钮

A submit button with a fun animation for Android.

Segmented Control with animation for Android API 12+

一个可以随处拖曳FloatingActionButton，边缘自动吸附，可设置按钮悬浮透明度，拖曳避免阻挡界面视图无法查看。

A custom radio button for Android API 12+

Simple custom ViewGroup with two shapes inside and simple scale animation

Customizable tri-state toggle button (with three states, three state toggle) for Android

Provides download button progress view for android

Button for android with animations for transition and error states.

安卓带有尖角气泡的控件（TextView，ImageView，EditText，Layout），支持渐变色，圆角等自定义属性

Button Loading for Android

揭示效果布局，可以指定2个子布局，以圆形揭示效果切换选中状态

Instagram-like button for taking photos or recording videos

⏳ A button with a countdown function

Easy to use night mode button with cool animation